Improvement in spark-arresters



L. SOHWEBBL; Spark-Arrester.

No. 211,268. Patented Jan. 7,1879'.

SLM.'

INVENTcz ATTORNEY UNITED STATES PATENT OEEToE.

LOUIS H. SCHW'EBEL, 0F MULLICA HILL, NEW JERSEY.

IMPROVEMENT IN SPARK-ARRESTERS.

Specification forming part of Letters Patent No. 211,268, dated January 7, 1879; application filed To all whom it may concern:

Be it known that I, Lo Urs H. Scnwnnnn, of Mullica Hill, in the county of Gloucester/and State of New Jersey, have in vented certain new and useful Improvements in Spark-Arresters;

and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled"`in the art to which in my invention, showing the flue closed. Fig. A

2 is a similar view showing the iiue open, and Fig. 3 is a side elevation of the device applied to a locomotive.

This invention has relation to spark-arresters for locomotives 5 and it consists in the improvements in the construction of the same hereinafter fully described, and particularly pointed out in the claim.

In the laccompanyimg .drawings similar letters of reference indicate corresponding parts in the several figures.

The object of this invention is to arrest and extinguish the sparks and convey the cinders beneath the locomotive 5 and. to this end I provide a stack, A, flaring from the bottom toward the top, in which I place thelueB, around which the stack A forms a chamber. To the upper end of the stack A, I secure, by means `of retracting-springs C, a cap, D, provided with an internal annular screen, E, and a deflector, F. Thel cap D is provided with downwardly-curved flanges G, which project over I the upper end of the stack A.

The upper end of the iue B rises slightly higher than the top of the stack A, in order that the retracting-springs C, operating upon the cap D, may draw the conical deflector F down into the mouth of the line B to close it.

Tubes H H lead from the bottom of'the chamber surrounding the flue B, and extend nearly to the track, as shown in Fig. 3.

The operation of the invention is as follows: The exhaust-steam and sparks from the engine pass up the liuc B, the steam raises the deiiector F and escapes through the screen E beneath flan ge G, while the sparks are arrested by said screen, and, falling to the bottom of the chamber aroundthe iiueB, pass outthrough the tubes H.

It will be observed that theretractin g-sprin gs C tend always to cause the conical detlector F to close the mouth of the flue B, which latter is only opened by the intermittent action of the exhaust-steam upon the deiector' F.

Having thus described my invention, what I claim as new and useful, and desire to secure by Letters Patent of the United Sta-tes, is-

A spark-arrester consisting ofthe stack A, forming a chamber around the iiue B1, and provided with the tubes H, in combina-tion with `the iue B and the flanged cap D Gr, provided with the deiector F and the internal annular screen, E, and secured to said Vstack by the reacting'springs C, constructed and arranged substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

L. H. SCHWEBEL.

lVitnesses:

W. G. S'riLns, vFRANK GALT. 

